3321015421 has 8 divisors (see below), whose sum is σ = 3352548024. Its totient is φ = 3289520640.

The previous prime is 3321015409. The next prime is 3321015473. The reversal of 3321015421 is 1245101233.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 81812025 + 3239203396 = 9045^2 + 56914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3321015421 - 2¹⁵ = 3320982653 is a prime.

It is a super-2 number, since 2×3321015421² = 22058286853039614482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3321015392 and 3321015401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321015121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185935 + ... + 203011.

It is an arithmetic number, because the mean of its divisors is an integer number (419068503).

Almost surely, 2^3321015421 is an apocalyptic number.

It is an amenable number.

3321015421 is a deficient number, since it is larger than the sum of its proper divisors (31532603).

3321015421 is a wasteful number, since it uses less digits than its factorization.

3321015421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18911.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3321015421 is about 57628.2519342727. The cubic root of 3321015421 is about 1491.9592592682.

Adding to 3321015421 its reverse (1245101233), we get a palindrome (4566116654).

The spelling of 3321015421 in words is "three billion, three hundred twenty-one million, fifteen thousand, four hundred twenty-one".